I don’t understand the question but if I can make a correct inference, they have thorns to protect themselves from predators.
Answer:
ummmmmmmmm sir what i um well I think G.o.o.g.l.e would be your friend on that one
A large central vacuole, and chloroplasts.
The gravitational force is being felt as the Earth pulls the train downwards using the two forces. The coils that provide the forces releases an electrical current which makes an electromagnetic field. It repels the materials with an equal force that goes up as well.
Fossil Fuels; Once they run out ,humans can not replacing them.
